This circuit was originally designed to measure capacitance with an ICL7107 but can be used with other digital modules. The circuit is from Electronics Now magazine from November 1996.
This circuit consists of a simplified Hartley oscillator that changes the frequency according to...
May 2017 - Mouser Electronics already has for sale the new Littelfuse SP2555NUTG diode arrays for...
I found this simple zener diodes voltage divider circuit in an old documentation. The resistor...